北京理工大学珠海学院 2020 届本科生毕业设计15 万吨/年环氧乙烷车间分离精制工段工艺设计摘 要环氧乙烷是重要的有机化工产品，主要用于生产乙二醇，环氧乙烷广泛应用于各个领域，研究意义重大。目前国内生产环氧乙烷的工厂仍未呈饱和状态，前景十分广阔。通过催化剂选择性的提高、改变生产线的结构等从而提高生产能力和降低成本和对环境的污染，这些都是目前需要研究的课题。本设计为 15 万吨/年环氧乙烷车间分离精制工段工艺设计。使用乙烯氧气直接氧化法生产环氧乙烷。通过计算物料衡算、热量衡算再进行设备选型、车间布置和三废处理。原料气进反应器进行反应，反应器出口气体进入环氧乙烷吸收塔。吸收塔出口的吸收液则进入解吸塔解吸。而解吸后的气体则进入精馏塔精馏，精馏后的产品纯度可达 99%。关键词：环氧乙烷；生产前景；乙烯氧气直接氧化法； 北京理工大学珠海学院 2020 届本科生毕业设计Process design of separation and refining section of 150000t/a ethylene oxide workshopAbstractEthylene oxide is an important organic chemical product, which is mainly used to produce ethylene glycol. Ethylene oxide is widely used in various fields, and the research is of great significance. At present, the domestic ethylene oxide production plant is still not saturated and has a bright future. Through the improvement of catalyst selectivity and the change of the structure of the production line, we can improve the production capacity and reduce the cost and environmental pollution.This design is the process design of 150000 T/a ethylene oxide workshop separation and refining section. Ethylene oxide is produced by direct oxidation of ethylene and oxygen. Through calculation of material balance and heat balance, equipment selection, workshop layout and three wastes treatment are carried out. The feed gas enters the reactor for reaction, and the gas at the outlet of the reactor enters the ethylene oxide absorption tower. The absorption liquid at the outlet of the abs...
